Update index.html

Author: wizardforcel

index.html

@@ -47,6 +47,7 @@
              data-ad-slot="2543897000"></ins>
       </div>
     </div>
+    <iframe src="https://www.bilibili.com/read/cv2540802" style="display:none"></iframe>
   </script>
   <script>
     window.docsPlugin = function(hook) {